xamarin.android

How to give unique id for each button

由 我怕爱的太早我们不能终老 提交于 2020-04-28 21:40:51
问题 I have buttons created by loop and each button it corresponds to a desk, so i have to able when i click a button i have to design spesific row of database how i add buttons: for (int i = 1; i < terasmasasayisi; i++) { var buttonteras = new Button { Text = i.ToString(), HeightRequest = 45, WidthRequest = 45, Margin = 5, BorderRadius = 100, };`` teras.Children.Add(button); } If i can set a relationship between the table number and i(desknumber), I can do this according to the id from my

How to give unique id for each button

由 巧了我就是萌 提交于 2020-04-28 21:39:51
问题 I have buttons created by loop and each button it corresponds to a desk, so i have to able when i click a button i have to design spesific row of database how i add buttons: for (int i = 1; i < terasmasasayisi; i++) { var buttonteras = new Button { Text = i.ToString(), HeightRequest = 45, WidthRequest = 45, Margin = 5, BorderRadius = 100, };`` teras.Children.Add(button); } If i can set a relationship between the table number and i(desknumber), I can do this according to the id from my

（语法基础）整理关于C#和Java的区别

由 亡梦爱人 提交于 2020-04-27 12:17:31
相信每个程序猿都有自己最喜欢的编程语言，然而对于编程语言似乎形成一条独特的鄙视链，就如Java和C#常常两边的开发者都是相互鄙视，然后他们一起共同鄙视全世界最好的编程语言——PHP 但是其实我想说的是，编程语言只是编程的工具，虽然各自语言都存在着一些优点和缺点，对于每个人对不同编程语法的理解和喜欢程度，都是仁者见仁智者见智的，与其在那里纠结哪一种语言是最好的编程语言；与其在那里因为用习惯了自己常用的编程语言来吐槽其它的语言来盲目寻找所谓的优越感，还不如多多实践，多多学习一下各个编程语言的差异，好到底好在哪里，差又到底差在哪里，我个人感觉多了解几种编程语言的语法还有它的运行机制，有利于我们更好的去理解我们现在正在使用的或者将来会遇到的编程语言，真正静下心来去学，这样才能不断提升，到达对语言理解的融会贯通 下面这篇文章是我从网上找到的微软官方文档里面的一篇文章关于介绍C#与Java语言基础差异的，我个人感觉讲的很基础易懂，所以收藏起来时不时去看一下 原文:1： https://docs.microsoft.com/zh-cn/xamarin/android/get-started/java-developers 原文里面讲的关于语法基础差异相对还是比较全面了， 但是里面只主要侧重于在开发 Xamarin.Android 应用程序时会遇到的 C# 语言功能 于是我找到一篇更全的

App is not maintaining the state after installation - Xamarin android

由 夙愿已清 提交于 2020-04-21 05:16:17
问题 Recently I noticed one thing in my app. I created apk for my app say ABC.apk and copied to my device and installed it by clicking on it. After the installation got successfully completed, I got 2 options 'Done' and 'Open', the usual options we get after installation. I clicked on 'Open' and run the app. I moved to some screen and I minimized the app and moved to someother app, when I click my ABC, it started from my first screen. It was just fraction of seconds I moved back to it, hence it

App is not maintaining the state after installation - Xamarin android

由 牧云@^-^@ 提交于 2020-04-21 05:15:02
问题 Recently I noticed one thing in my app. I created apk for my app say ABC.apk and copied to my device and installed it by clicking on it. After the installation got successfully completed, I got 2 options 'Done' and 'Open', the usual options we get after installation. I clicked on 'Open' and run the app. I moved to some screen and I minimized the app and moved to someother app, when I click my ABC, it started from my first screen. It was just fraction of seconds I moved back to it, hence it

App is not maintaining the state after installation - Xamarin android

由 那年仲夏 提交于 2020-04-21 05:13:00
问题 Recently I noticed one thing in my app. I created apk for my app say ABC.apk and copied to my device and installed it by clicking on it. After the installation got successfully completed, I got 2 options 'Done' and 'Open', the usual options we get after installation. I clicked on 'Open' and run the app. I moved to some screen and I minimized the app and moved to someother app, when I click my ABC, it started from my first screen. It was just fraction of seconds I moved back to it, hence it

Xamarin.Android Http client that allow me to add client certificate from KeyStore [duplicate]

由 时光毁灭记忆、已成空白 提交于 2020-04-18 02:55:14
问题 This question already has answers here : xamarin.android adding client certificate (2 answers) Closed 5 days ago . I am trying to add client certificate whitch I am getting from this method: private X509Certificate[] GetCertificateChain(string alias) { try { return KeyChain.GetCertificateChain(this, alias); } catch (KeyChainException e) { } return null; } System.Net.Http.HttpClientHandler doesn't allow me to addclient certificate. NotImplemented exception is thrown. Any solution? Maybe other

How do I use System.IO to use ListView to show folders/Files on xamarin.android?

由 左心房为你撑大大i 提交于 2020-04-17 22:11:30
问题 So this is a follow up to a previous question I asked Here After following Jasons advice, I did a little resurch to use System.IO to use a listview to show folders on android. I have the following example from the microsoft website... class PublicListViews : ListActivity { public string ListCreate(string path) { ListAdapter = new ArrayAdapter<string>(this, Resource.Layout.list_item, countries); ListView.TextFilterEnabled = true; ListView.ItemClick += delegate (object sender, AdapterView

Xamarin java.lang.UnsatisfiedLinkError: No implementation found for void crc64690a6026da756c39.MainApplication.n_onCreate()

由 无人久伴 提交于 2020-04-16 05:54:07
问题 When we try to run a Xamarin App in Debug mode for android on a real/fake device. Some weird exception is thrown when launching the app. This is the stacktrace where it begins to go wrong: 01-22 13:40:38.394 E/MonoDroid( 4413): Could not load type 'Packing.App.Droid.MainApplication, Packing.App.Android, Version=1.0.0.0, Culture=nl-NL, PublicKeyToken=null'. Skipping JNI registration of type 'crc64690a6026da756c39/MainApplication'. 01-22 13:40:38.398 D/FirebaseApp( 4413): com.google.firebase

How do get the length of a video in Xamarin Forms

由 心不动则不痛 提交于 2020-04-14 06:03:51
问题 How do I get the length of a video using Xamarin Forms? I have used the following link to get the thumbnail from a video, but I need to be able to get the video length https://forums.xamarin.com/discussion/119450/create-thumbnail-from-video 回答1: OK, I was able to use my brain and figure this out. It uses a similar method in the link: For Android: public string VideoLength(string url) { MediaMetadataRetriever retriever = new MediaMetadataRetriever(); retriever.SetDataSource(url, new Dictionary
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